迭代的

Fourthly, Broyden iterative method is studied to solve nonlinear equation with parameters and the existence and convergence theorem is also given.

第四章的主要结果：研究用Broyden迭代求解带参数非线性方程，在弱条件下给出Broyden迭代格式的存在性和收敛性定理。

The integral equation is convergent for any conductivity distribution and frequency if iterative solvers are used.

提出一种应用迭代法求解新积分方程的迭代初值优化选择方法，并通过具体算例对比说明该方法可使频率域电磁测深三维模拟的计算效率得到有效提高。

In the first place,we describe the formation for calculation of meanly minimum free energy and covariation value and how to combine them to predict the consensus secondary structure of homology RNAs.

然后讨论了具有预测伪结能力的迭代化思想，并在此基础上，提出基于平均最小自由能和协变信息预测同源RNA序列公共二级结构的迭代化方法。

In this paper, we study the finite iterated order of growth and the iterated convergence exponent of the zero sequence of nonzero meromorphic solutions of second order homogeneous linear differential equation , and obtain some precision evaluation.

摘要研究了二阶齐次线性微分方程非零亚纯解的迭代级与零点迭代收敛指数，得到了它们的精确估计。

The family of iterative methods avoid evaluating the second Frechet derivative.

在第一章中，我们总结了各种迭代法和它们的收敛条件及证明各种迭代法收敛性的技巧。

According to the space domain iteration method of the Fredholm integral equation of the first kind, the wave number domain iteration formula is deduced for calculating the wave spectrum of the potential field on a lower horizontal plane.

根据第一类Fredholm积分方程的空间域迭代解法，推导出计算向下延拓水平面上位场波谱的波数域迭代公式。

In this paper, we consider the iterative methods for computing the generalized Bott-Duffin inverse.

该文我们考虑计算广义Bott-Duffin逆的迭代方法，研究了迭代公式收敛的充分必要条件。

By using K-ε twoequation model to modify turbulent flow, the simulation results could coincide better with the real filling processes. Combined flow path analytical program which was used to revise the ingate velocity, it increased the accuracy effectively, and raised the calculating velocity.

该软件首次采用非均匀网格剖分技术，更为逼真地反映了铸件的几何形状；耦合计算过程中，采用简化耦合算法，避免了繁复的迭代过程，缩短了迭代时间，且计算精度能满足工程要求；采用K-ε双方程紊流模型对紊流流动进行修正，模拟结果更加符合实际充型过程；联合流路解析程序修正内浇口入流速度，有效地提高了计算精度，加快了计算速度。

In this method,without depending upon small parameter,a trial function with possible unknowns is used as initial approximation,then a correction functional is constructed by means of a general Lagrange multiplier ,which can be identified via variational theory.

本文提出了一种求解非线性方程的迭代算法，它不依赖于小参数，是先给方程一个带待定函数的试函数作为初始近似解，然后用拉氏乘子法构造一个迭代公式。

To guarantee the system stability and improve the system precision, initial weight value selecting problem for the neural network is discussed and corresponding iterative algorithm is provided.

讨论了控制器参数迭代初值选取的基本原则，并给出了在保证系统稳定性前提下参数的迭代算法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。